Truck body

Abstract

A truck bed having a longitudinally movable bulkhead for ejecting material carried therein. A cab cover plate is pivotally attached to a carriage coupled to the bulkhead. A mechanism for pivoting the cab cover plate to remove the material carried thereon is also provided.

I claim: 
     
       1. A truck which includes a cab positioned in a forward portion of said truck, a truck bed for carrying material to be transpoeted by said truck, with said truck bed having a first end adjacent said cab and a second end at a distal end of said truck and a length between said first end and said second end, a bulkhead being movable along substantially said length of said truck bed for ejecting the material from said truck bed, a bulkhead moving means, and a movable carriage attached to said bulkhead and movable with said bulkhead; wherein the improvement comprises a cab cover plate pivotally supported by said carriage, and means to pivot said cab cover plate when said bulkhead is moved adjacent a second end of said sidewalls, wherein a pair of tracks extending from said cab to said second end of said sidewalls is provided where said pair of tracks carry rollers for supporting said carriage; and wherein said cab cover plate pivoting means includes a pair of stops provided in the sidewalls of said truck bed adjacent said second end of said truck bed and aligned with said pair of tracks, and a pair of camming arms attached to said cab cover plate cooperating with said stops to pivot said cab cover plate. 
     
     
       2. A truck comprising: a cab positioned in a forward portion of said truck;   a truck bed for carrying material to be transported by said truck, said bed including a floor having a length and a pair of spaced sidewalls attached to said floor and extending longitudinally along said truck, each sidewall having a first end adjacent said cab and a second end at a distal end of said truck;   a bulkhead extending between said sidewalls, said bulkhead being movable along substantially said length of said floor and sidewalls or ejecting the material from said truck bed;   a means for moving said bulkhead coupled to said bulkhead;   a movable carriage attached to said bulkhead and movable with said bulkhead;   a cab cover plate supported by said carriage wherein said cab cover plate is pivotally attached to said carriage; and   means to pivot said cab cover plate when said bulkhead is moved adjacent said second end of said sidewalls, wherein a pair of tracks extending from said cab to a second end of said sidewalls is provided where said pair of tracks carry rollers for supporting said carriage; and wherein said cab cover plate pivoting means includes a pair of stops provided in said sidewalls adjacent said second end and aligned with said pair of tracks, and a pair of camming arms attached to said cab cover late cooperating with said stops to pivot said cab cover plate.   
     
     
       3. The truck of claim 2 wherein said cab cover plate is povitable between a substantially horizontal position and a second elevated position. 
     
     
       4. The truck of claim 2 wherein said carriage is movable from a position which overlays said cab when said bulkhead is adjacent said first end of said sidewalls. 
     
     
       5. The truck of claim 2 wherein said bulkhead moving mean comprises a piston assembly. 
     
     
       6. The truck of claim 2 further including a gate extending between said sidewalls at said second end and optionally attached to said floor. 
     
     
       7. The truck of claim 6 further including a means for pivoting said gate between a closed position and an open position. 
     
     
       8. The truck of claim 7 wherein said gate pivoting means includes a pair of pivotable gate arms attached to said gate and operated by a pair of pistons. 
     
     
       9. A truck bed for carrying material to be transported, said bed comprising: a floor extending in a longitudinal direction and having a first end and a second end;   a pair of spaced sidewalls attached to said floor and extending along said longitudinal direction, each said sidewall having a first end and a second end and a length between said first and said second end;   a bulkhead extending between said sidewalls, said bulkhead being movable along substantially said length of said sidewalls or ejecting material from said truck bed;   a means for moving said bulkhead coupled to said bulkhead;   a movable carriage attached to said bulkhead and movable with said bulkhead;   a cover plate supported by said carriage wherein said cover plate is pivotally attached to said carriage; and   means to pivot said cover plate when said bulkhead is moved adjacent said second end of said sidewalls, wherein a pair of tracks extending the longitudinal length of said sidewalls is provided where said pair of tracks carry rollers for supporting said carriage; and wherein said cab cover plate pivoting means includes a pair of stops provided in said sidewalls adjacent said second end and aligned with said pair of tracks, and a pair of camming arms attached to said cab cover plate cooperating with said stops to pivot said cab cover plate.   
     
     
       10. The truck bed of claim 90 wherein said cover plate is pivotable between a substantially horizontal position and a second elevated position. 
     
     
       11. The truck of claim 9 wherein said carriage is movable from a position which extends beyond said first end of said floor when said bulkhead is adjacent said first end of said sidewalls. 
     
     
       12. The truck bed of claim 9 further including a gate extending between said sidewalls at said second end of said sidewalls and pivotably attached to said floor at said second end of said floor. 
     
     
       13. The truck bed of claim 12 further including a means for pivoting said gate between a closed position and an open position.